Gate valve



Feb. 6, 1923.

F. J. STALLINGS GATE VALVE Filed-Mar. 50, 1921 gwuentoz H [Jaw/m S Patented Feb. 6, 1923.

UNITED FRANCIS J. STALLINGS, OF EFFINGHAM, ILLINOIS.

GATE VALVE.

Application filed March 30, 1921. Serial No. 456,902.

To all whom it may concern:

Be it known that I, FRANCIS J. STALLINGS, a citizen of the United States, residing at Eflingham, in the county of Effingham and State of Illinois, have invented certain new and useful Improvements in a Gate Valve; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a gate valve, and the object is to provide means whereby the accumulation of sand, gravel, etc., against the seat of a gate valve, is obviated.

A further object is to provide, in connection with the valve per se, a U-shaped frame within which the valve is movable to operative position, the frame itself being movable in the same direction as the valve, but to an extent suflicient only to bring the inner side of the lower portion of the frame to a level with the valve seat. thereby permitting the water to wash all obstructions away from the seat.

A still further object is to provide for the movement of the U-shaped frame incidentally to the movement of the gate-valve per se, so that such movement shall follow as a necessary result, the valve seat being therefore always free of obstruction, without the necessity of devoting any attention to the matter.

gate valve constructed in accordance with my lnvention.

Figure 2 is a vertical section on 'the plane indicated by the line 22 of Figure 1, and Figure 3 is a horizontal section on the line 33 of Figure 1.

The valve per se is designated 10, being provided with the usual stem 11 and operating member 12. The valve operates within a U-shaped frame comprising a lower element 13 and side members 14 and 15, these elements last named being recessed, as shown at 16 and 17, in order to provide guide Ways for the laterally extending lugs 18 and 19 carried by the element 10. v

The lower portion 13 is cut away on the arc'of a circle, as shown at 21, this portion cooperating with the rounded end22 of the valve 10. The elements 14. and 15 are further recessed as shown at 14 and 15, the pins or lugs 22 and 23 engaging these recesses last named, and serving to limit the movement of the U-frame. The valve casing includes a web portion 25 having the port 26 therein, and the movement of the U-frame is limited in such manner that the inner curved surface 21 is brought to the position shown in Figure 2, when the valve is raised, or opened. The recessed portions 16 and 17 are of such proportions-that the upper end walls therein are engaged by the lugs projecting into the recesses, before the valve has reached the limit of its movement. The engagement thus produced causes the elevation of the U-frame, with the result that any accumulation of sand, gravel, or dirt, will be washed through the port 26, this operation taking place every time the valve is opened to the required extent. a

The casing 32 of the valve includes guiding elements and 34 for the U-frame, the lower element against which the portion 13 of the U-frame abuts, being designated 35. It will be observed that notwithstanding the fact that an important automatic operation is thus produced, the simplicity of the device is such that it can hardly get out of order with ordinary usage. and that reliability in operation is assured.

Having thus described the invention, what I claim is 1. In a device of the class described, a valve casing including a web having a port formed therein, a U-shaped frame slidable within the casing and having an opening opposite the port, a valve within the frame and movable into position for closing the port, said frame including a recessed portion, lugs carried by the valve and cooperating with the recessed portion, the lugs ens gaging the end walls of said recessed portion toward the limit of the stroke of the valve, for moving the frame into position for efiecting the discharge of foreign material accumulating Within or near the port, and means for limiting the movement of the frame.

2. In a valve, a valve member, a movable seat member therefor, means operable to unseat the valve, said seat member and valve being bodily movable in the same direction and a slip connection between said valve member and seat member whereby initial movement of said means will move the valve member independently of the seat member and continued movement will move the valve member and seat member together and in the same direction.

3. In a valve, a valve member, a movable seat member therefor. said seat member and valve being bodily slidable in the same 'direction, means operable to unseatthe valve the valve member and seat member together in the same direction.

4;. In a valve, a valve member. a movable seat member therefor, said seat member and valve member beingbodily slidable in the same direction, means operable to unseat the valve member, one of said members having an elongated recess, the other member having means to extend into said recess whereby a slip connection is provided between said valve member and seat member so that initial movement of said means will move the valve member independently of the seat member and continued movement will move the valve member and seat member together and in the same direction, a casing for said valve member and seat member having a port with which said valve member cooperates, and means to limit movement of said seat member relatively to said casing.

In testimony whereof I aflix my signature in presence of two witnesses.

FRANCIS J. STALLI NGS.

Witnesses:

FRED. M. GOEBEL, J. TAYLOR. 

